pi-hole/automated install/basic-install.sh

#!/usr/bin/env bash
# Pi-hole: A black hole for Internet advertisements
# (c) 2015, 2016 by Jacob Salmela
# Network-wide ad blocking via your Raspberry Pi
# http://pi-hole.net
# Installs Pi-hole
#
# Pi-hole is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.

# pi-hole.net/donate
#
# Install with this command (from your Pi):
#
# curl -L install.pi-hole.net | bash

set -e
######## VARIABLES #########
tmpLog=/tmp/pihole-install.log
instalLogLoc=/etc/pihole/install.log
setupVars=/etc/pihole/setupVars.conf

webInterfaceGitUrl="https://github.com/pi-hole/AdminLTE.git"
webInterfaceDir="/var/www/html/admin"
piholeGitUrl="https://github.com/pi-hole/pi-hole.git"
PI_HOLE_LOCAL_REPO="/etc/.pihole"
PI_HOLE_FILES=(chronometer list piholeDebug piholeLogFlush setupLCD update version)
useUpdateVars=false

IPV4_ADDRESS=""
IPV6_ADDRESS=""
QUERY_LOGGING=true

# Find the rows and columns will default to 80x24 is it can not be detected
screen_size=$(stty size 2>/dev/null || echo 24 80)
rows=$(echo $screen_size | awk '{print $1}')
columns=$(echo $screen_size | awk '{print $2}')

# Divide by two so the dialogs take up half of the screen, which looks nice.
r=$(( rows / 2 ))
c=$(( columns / 2 ))
# Unless the screen is tiny
r=$(( r < 20 ? 20 : r ))
c=$(( c < 70 ? 70 : c ))

######## Undocumented Flags. Shhh ########
skipSpaceCheck=false
reconfigure=false
runUnattended=false

######## FIRST CHECK ########
# Must be root to install
echo ":::"
if [[ ${EUID} -eq 0 ]]; then
  echo "::: You are root."
else
  echo "::: Script called with non-root privileges. The Pi-hole installs server packages and configures"
  echo "::: system networking, it requires elevated rights. Please check the contents of the script for"
  echo "::: any concerns with this requirement. Please be sure to download this script from a trusted source."
  echo ":::"
  echo "::: Detecting the presence of the sudo utility for continuation of this install..."

  if [ -x "$(command -v sudo)" ]; then
    echo "::: Utility sudo located."
    exec curl -sSL https://install.pi-hole.net | sudo bash "$@"
    exit $?
  else
    echo "::: sudo is needed for the Web interface to run pihole commands.  Please run this script as root and it will be automatically installed."
    exit 1
  fi
fi

# Compatibility

if [[ $(command -v apt-get) ]]; then
  #Debian Family
  #############################################
  PKG_MANAGER="apt-get"
  PKG_CACHE="/var/lib/apt/lists/"
  UPDATE_PKG_CACHE="${PKG_MANAGER} update"
  PKG_UPDATE="${PKG_MANAGER} upgrade"
  PKG_INSTALL="${PKG_MANAGER} --yes --fix-missing install"
  # grep -c will return 1 retVal on 0 matches, block this throwing the set -e with an OR TRUE
  PKG_COUNT="${PKG_MANAGER} -s -o Debug::NoLocking=true upgrade | grep -c ^Inst || true"
  # #########################################
  # fixes for dependancy differences
  # Debian 7 doesn't have iproute2 use iproute
  ${PKG_MANAGER} install --dry-run iproute2 > /dev/null 2>&1 && IPROUTE_PKG="iproute2" || IPROUTE_PKG="iproute"
  # Prefer the php metapackage if it's there, fall back on the php5 pacakges
  ${PKG_MANAGER} install --dry-run php > /dev/null 2>&1 && phpVer="php" || phpVer="php5"
  # #########################################
  INSTALLER_DEPS=(apt-utils debconf dhcpcd5 git whiptail)
  PIHOLE_DEPS=(bc cron curl dnsmasq dnsutils ${IPROUTE_PKG} iputils-ping lighttpd lsof netcat ${phpVer}-common ${phpVer}-cgi sudo unzip wget)
  LIGHTTPD_USER="www-data"
  LIGHTTPD_GROUP="www-data"
  LIGHTTPD_CFG="lighttpd.conf.debian"
  DNSMASQ_USER="dnsmasq"

  package_check_install() {
    dpkg-query -W -f='${Status}' "${1}" 2>/dev/null | grep -c "ok installed" || ${PKG_INSTALL} "${1}"
  }
elif [ $(command -v rpm) ]; then
  # Fedora Family
  if [ $(command -v dnf) ]; then
    PKG_MANAGER="dnf"
  else
    PKG_MANAGER="yum"
  fi
  PKG_CACHE="/var/cache/${PKG_MANAGER}"
  UPDATE_PKG_CACHE="${PKG_MANAGER} check-update"
  PKG_UPDATE="${PKG_MANA